GLIR: add some comments
GLIR: add some comments

jdreaver/vispy,sbtlaarzc/vispy,michaelaye/vispy,julienr/vispy,bollu/vispy,drufat/vispy,RebeccaWPerry/vispy,sh4wn/vispy,dchilds7/Deysha-Star-Formation,Eric89GXL/vispy,hronoses/vispy,inclement/vispy,sbtlaarzc/vispy,RebeccaWPerry/vispy,Eric89GXL/vispy,srinathv/vispy,jdreaver/vispy,srinathv/vispy,kkuunnddaannkk/vispy,RebeccaWPerry/vispy,ghisvail/vispy,jay3sh/vispy,hronoses/vispy,sbtlaarzc/vispy,jay3sh/vispy,julienr/vispy,dchilds7/Deysha-Star-Formation,ghisvail/vispy,kkuunnddaannkk/vispy,ghisvail/vispy,hronoses/vispy,inclement/vispy,sh4wn/vispy,drufat/vispy,Eric89GXL/vispy,bollu/vispy,jay3sh/vispy,michaelaye/vispy,QuLogic/vispy,drufat/vispy,dchilds7/Deysha-Star-Formation,inclement/vispy,QuLogic/vispy,julienr/vispy,QuLogic/vispy,michaelaye/vispy,jdreaver/vispy,bollu/vispy,kkuunnddaannkk/vispy,sh4wn/vispy,srinathv/vispy